Home / 198,618.78-274,095.09-107,975.46

Finding the Fourth Proportional to 198,618.78, 274,095.09 and 107,975.46

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Solution

The fourth proportional to 198,618.78, 274,095.09 and 107,975.46 is: 149,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,618.78 : 274,095.09 = 107,975.46 : x
  2. Step 2: Convert to fraction form
    198,618.78/274,095.09 = 107,975.46/x
  3. Step 3: Cross multiply
    198,618.78x = 274,095.09 × 107,975.46
  4. Step 4: Simplify right side
    198,618.78x = 29,595,543,426.49
  5. Step 5: Solve for x
    x = 29,595,543,426.49/198,618.78
  6. Step 6: Final answer
    x = 149,006.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.